Table 4. Median number of days’ wages needed to purchase standard treatments, by World Bank Income Group.

World Bank Income Group	Therapeutic group	Median days’ wages*
		Public sector		Private sector
		Originator brand	Lowest priced generic	Originator brand	Lowest priced generic
Low-income countries (n = 10)	Cardiovascular	1.9 (n = 4)	0.6 (n = 28)	2.9 (n = 11)	0.9 (n = 38)
	Diabetes	2.9 (n = 2)	0.9 (n = 9)	5.3 (n = 6)	1.1 (n = 15)
	COPD	0.9 (n = 2)	0.7 (n = 9)	2.9 (n = 8)	1.3 (n = 14)
	CNS	1.1 (n = 2)	0.4 (n = 15)	1.3 (n = 6)	1.1 (n = 28)
	All medicines	1.1 (n = 10)	0.7 (n = 61)	3.1 (n = 31)	1.0 (n = 95)
Lower-middle income countries (n = 12)	Cardiovascular	2.8 (n = 7)	0.7 (n = 58)	3.7 (n = 31)	1.1 (n = 85)
	Diabetes	3.3 (n = 4)	0.6 (n = 16)	3.8 (n = 13)	1.4 (n = 24)
	COPD	2.4 (n = 6)	1.4 (n = 10)	2.5 (n = 13)	1.7 (n = 18)
	CNS	12.0 (n = 4)	1.4 (n = 30)	9.0 (n = 14)	2.3 (n = 40)
	All medicines	3.0 (n = 21)	0.9 (n = 114)	3.8 (n = 71)	1.4 (n = 167)
Upper-middle income countries (n = 8)	Cardiovascular	3.5 (n = 6)	0.1 (n = 17)	1.9 (n = 39)	0.3 (n = 55)
	Diabetes	2.1 (n = 2)	0.3 (n = 6)	1.4 (n = 14)	0.5 (n = 22)
	COPD	0.6 (n = 1)	0.3 (n = 3)	1.5 (n = 9)	0.6 (n = 12)
	CNS	-	0.4 (n = 10)	4.0 (n = 28)	0.9 (n = 32)
	All medicines	2.8 (n = 9)	0.2 (n = 36)	2.4 (n = 90)	0.5 (n = 121)

*Based on median treatment prices and the daily wage of the lowest paid unskilled government worker. Excludes medicines supplied free-of-charge in the public sector. n = number of data points in the analysis